Camera



H. J. FERRIER.

CAMERA.

APPLICATION FILED AUG- 16, 1918-' Patented July 13, 1920.

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I UNITEDa TA'IfES PATENT, OFFICE.

HECTOBJ'. PERRTER, 0F EDMONTON, ALBERTA, CANADA.

CAMERA.

To all whom/it may conccaw- Be it known that I, Hnoron J. Pnnmnn, a citizen of Canada residing at Edmonton, in the Province of Alberta and Dominion of Canada,. have inventednew and useful Im-.. provements 111 Cameras, of which the following is a specification. i

This invention relates to cameras and it consists in the novel featureshereinafter describedand claimed,

An object of the invention is to provide in a camera means for approximatelyfocusingcludes in combination with a camera having means for moving afilmacross thefocal plane a curtain mounted upon aspring operated roller located within the body of the camera and in advance of the'film there being means for drawing the curtain in front of the film and in close proximity to the same so that the view may be produced upon the curtain and the lensmay be adjusted to obtain a proper focus and thereby produce clear picture when the film is exposed.

In the accompanying drawings 1 Figure 1. is a side elevation of the camera;

Fig. 2 is a detail view of the curtain and its appurtenances.

Fig.8 is a section through the camera, in a plane parallel to Fig. 1.' a

Figs. 4 and 5 are detail views illustrative of the connection between the rollers 5 and 11.

As illustrated in the accompanying draw. ings, the camera includes a body 1 of usual configuration and in advance of whichis adjustably mounted a lens 2; A film 3 is arranged'to move across the focalplane of the body 1 and mayunwind from a spool 4 and,

wind upon a spool 5 in a usual manner. A

key 6 is provided upon the shaft of the spool 5 and may be used for turning the said spool.

- A gear wheel 7 is fixed to theshaft ofthe 1 spool 5. a

A spring actuated roller 8 is journaled in the body 3 and a curtain 9 is arranged to wind upon the roller '8 and unwind therefrom. The intermediate portion of the curtain 9 may be passed around guiding rollers 10 journaled'in the body 3. A roller 11 is journaled for rotation in the upper portion of the body 3 and the curtain 9 is provided with tapes orcords 12 which are arranged to wind upon the roller 11 and unwind there from. A'gear wheel 13 is fixed to the shaft of the roller 11. A gear wheel 14 is fixed to a spring pressed button 15 and when the said button is moved by pressure against the tengray. The body 3 is provided at its side with a door 16 which may be opened to View the forward surface of thecurtain.

When the film is moved across the focal plane the wheel 14 is to be moved into en- Specification of Letters Patent Patented July-1 3, 1920. i I Application filed" Augustlfi, 1918. Serial N 0. 250,245.

'sion of it spring the wheel 14 is moved out i gagement with the wheels 7 and 11 whereby a i the curtain 9 is also drawn across the focal plane. The lens 2 is then adjusted to prop erly focus the image upon the gray surface of the curtain 9. When the proper focus is had the door 16 is closed and the wheel 14 is moved out of engagement with the wheels 7 and 11 whereupon the curtain 9 will be rewound upon the roller 8. Consequently when the shutter of the lens mechanism is operated an exposure is had upon the film and'a clear cut picture is produced.

- From the foregoing descriptiontaken in conjunction with the accompanying drawings, it will'be seen that a camera of simple and durable structure 1s provided andthat means are included in the camera structure I for approximately focusing an image or images upon the focal plane ofthe film prior to the exposure of the film.

claimed is I Having described the invention what is Y 'A camera comprising a body having an opening and means to normally close the same, a lens adjustably mounted with rela-' tionto the body; means to move a filmin the body, a spring-actuated roller journaled in the body, a second roller journaled in the body, means'to connect the second-named necting means being capable of ready disconnection from the film-moving means, and an ated roller'and having an opening andalso ,roller with thefilm-moving means, said conhaving a focusing surface visible through the opening in the body. v

In testimony whereof I afiix my signature.

HECTOR J. PERRIER, 

